/ Thesaurus / A Synonyms of all clear Find synonyms for: Noun1. all clear, signal, signaling, signusage: a signal (usually a siren) that danger is over2. all clear, permissionusage: permission to proceed because obstacles have been removedWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language